//
  • Subject is exactly "Hertz, Heinrich, 1857-1894"
https://library.rds.ie/files/26-9.pdf
Item of correspondence from GFF letters
Collection

https://library.rds.ie/files/26-12.pdf
Item of correspondence from GFF letters
Collection

https://library.rds.ie/files/26-11.pdf
Item of correspondence from GFF letters
Collection

https://library.rds.ie/files/26-10.pdf
Item of correspondence from GFF letters
Collection